CMR or CMP data cable? One could be deadly in a fire -

Posted on June 16th, 2010 by admin

Data and voice cable is classified as either CMR or CMP. CMR (sometimes called Riser) uses PVC plastic which gives off toxic fumes when it burns. In addition, it drops little flaming balls of fire as it burns along the cable. CMP (sometimes called Plenum) uses a different plastic which does not give off the same toxic fumes. According to code, if your cabling is exposed to your ventilation system (it’s in the office area or it’s in open, ventilation space above the ceiling), it needs to be plenum. For safety reasons, Precision Cabling only uses plenum voice and data cables. Check the writing on your cables and see whether you have CMR or CMP cables

This entry was posted on Wednesday, June 16th, 2010 at 5:04 pm and is filed under Uncategorized.